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1025310243454 = 27217679185557
BaseRepresentation
bin11101110101110010100…
…00001011101001111110
310122000111122010000022021
432322321100023221332
5113244313410242304
62103004312510354
7134035100162200
oct16727120135176
93560448100267
101025310243454
113659169a2472
121468663ab3ba
13758bcb78463
14378a7aac770
151ba0d7bca54
hexeeb940ba7e

1025310243454 has 48 divisors (see below), whose sum is σ = 1922574031632. Its totient is φ = 407397779712.

The previous prime is 1025310243427. The next prime is 1025310243479. The reversal of 1025310243454 is 4543420135201.

It is a super-2 number, since 2×10253102434542 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4481157 + ... + 4704400.

It is an arithmetic number, because the mean of its divisors is an integer number (40053625659).

Almost surely, 21025310243454 is an apocalyptic number.

1025310243454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1025310243454 is a deficient number, since it is larger than the sum of its proper divisors (897263788178).

1025310243454 is a wasteful number, since it uses less digits than its factorization.

1025310243454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9185657 (or 9185650 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 1025310243454 its reverse (4543420135201), we get a palindrome (5568730378655).

The spelling of 1025310243454 in words is "one trillion, twenty-five billion, three hundred ten million, two hundred forty-three thousand, four hundred fifty-four".

Divisors: 1 2 7 14 17 34 49 67 98 119 134 238 469 833 938 1139 1666 2278 3283 6566 7973 15946 55811 111622 9185557 18371114 64298899 128597798 156154469 312308938 450092293 615432319 900184586 1093081283 1230864638 2186162566 4308026233 7651568981 8616052466 10462349423 15303137962 20924698846 30156183631 60312367262 73236445961 146472891922 512655121727 1025310243454